Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 3 4.  Predictions up to the next  14.0 days:

     Date     Time(AURA) AURA Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/06/2018   03:42:05   (  79.61,  22.32) 03/06/2018   03:41:04  (  79.61,  22.32)    0.09                61
 03/06/2018   04:31:26   ( -79.84,-168.30) 03/06/2018   04:31:42  ( -79.84,-168.29)    0.24                16
 03/08/2018   19:58:32   (  79.69, 138.81) 03/08/2018   19:57:58  (  79.68, 138.78)    0.91                34
 03/08/2018   20:47:54   ( -79.88, -52.05) 03/08/2018   20:48:37  ( -79.88, -52.07)    0.48                43
 03/11/2018   12:14:59   (  79.77,-104.71) 03/11/2018   12:14:52  (  79.76,-104.77)    1.33                 7
 03/11/2018   13:04:21   ( -79.96,  64.45) 03/11/2018   13:05:31  ( -79.96,  64.43)    0.63                70
 03/14/2018   03:42:05   ( -79.64,-157.44) 03/14/2018   03:41:07  ( -79.64,-157.44)    0.17                58
 03/14/2018   04:31:25   (  79.84,  11.74) 03/14/2018   04:31:45  (  79.83,  11.68)    1.34                20
 03/16/2018   19:58:32   ( -79.71, -41.03) 03/16/2018   19:58:01  ( -79.71, -41.00)    0.73                31